<?php
/**
 * CSSTidy - CSS Parser and Optimiser
 *
 * CSS Parser class
 *
 * This file is part of CSSTidy.
 *
 * CSSTidy is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * CSSTidy is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with CSSTidy; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
 * @package csstidy
 * @author Florian Schmitz (floele at gmail dot com) 2005-2006
 */

/**
 * Various CSS data needed for correct optimisations etc.
 *
 * @version 1.3
 */
	define('AT_START',    1);
	define('AT_END',      2);
	define('SEL_START',   3);
	define('SEL_END',     4);
	define('PROPERTY',    5);
	define('VALUE',       6);
	define('COMMENT',     7);
	define('DEFAULT_AT', 41);
	
	/**
	 * All whitespace allowed in CSS
	 *
	 * @global array $GLOBALS['csstidy']['whitespace']
	 * @version 1.0
	 */
	$GLOBALS['csstidy']['whitespace'] = array(' ',"\n","\t","\r","\x0B");
	
	/**
	 * All CSS tokens used by csstidy
	 *
	 * @global string $GLOBALS['csstidy']['tokens']
	 * @version 1.0
	 */
	$GLOBALS['csstidy']['tokens'] = '/@}{;:=\'"(,\\!$%&)*+.<>?[]^`|~';
	
	/**
	 * All CSS units (CSS 3 units included)
	 *
	 * @see compress_numbers()
	 * @global array $GLOBALS['csstidy']['units']
	 * @version 1.0
	 */
	$GLOBALS['csstidy']['units'] = array('in','cm','mm','pt','pc','px','rem','em','%','ex','gd','vw','vh','vm','deg','grad','rad','ms','s','khz','hz');
	
	/**
	 * Available at-rules
	 *
	 * @global array $GLOBALS['csstidy']['at_rules']
	 * @version 1.0
	 */
	$GLOBALS['csstidy']['at_rules'] = array('page' => 'is','font-face' => 'is','charset' => 'iv', 'import' => 'iv','namespace' => 'iv','media' => 'at');
	
	 /**
	 * Properties that need a value with unit
	 *
	 * @todo CSS3 properties
	 * @see compress_numbers();
	 * @global array $GLOBALS['csstidy']['unit_values']
	 * @version 1.2
	 */
	$GLOBALS['csstidy']['unit_values'] = array ('background', 'background-position', 'border', 'border-top', 'border-right', 'border-bottom', 'border-left', 'border-width',
	                                            'border-top-width', 'border-right-width', 'border-left-width', 'border-bottom-width', 'bottom', 'border-spacing', 'font-size',
	                                            'height', 'left', 'margin', 'margin-top', 'margin-right', 'margin-bottom', 'margin-left', 'max-height', 'max-width',
	                                            'min-height', 'min-width', 'outline-width', 'padding', 'padding-top', 'padding-right', 'padding-bottom', 'padding-left',
	                                            'position', 'right', 'top', 'text-indent', 'letter-spacing', 'word-spacing', 'width');
	
	/**
	 * Properties that allow <color> as value
	 *
	 * @todo CSS3 properties
	 * @see compress_numbers();
	 * @global array $GLOBALS['csstidy']['color_values']
	 * @version 1.0
	 */
	$GLOBALS['csstidy']['color_values'] = array();
	$GLOBALS['csstidy']['color_values'][] = 'background-color';
	$GLOBALS['csstidy']['color_values'][] = 'border-color';
	$GLOBALS['csstidy']['color_values'][] = 'border-top-color';
	$GLOBALS['csstidy']['color_values'][] = 'border-right-color';
	$GLOBALS['csstidy']['color_values'][] = 'border-bottom-color';
	$GLOBALS['csstidy']['color_values'][] = 'border-left-color';
	$GLOBALS['csstidy']['color_values'][] = 'color';
	$GLOBALS['csstidy']['color_values'][] = 'outline-color';
	
	
	/**
	 * Default values for the background properties
	 *
	 * @todo Possibly property names will change during CSS3 development
	 * @global array $GLOBALS['csstidy']['background_prop_default']
	 * @see dissolve_short_bg()
	 * @see merge_bg()
	 * @version 1.0
	 */
	$GLOBALS['csstidy']['background_prop_default'] = array();
	$GLOBALS['csstidy']['background_prop_default']['background-image'] = 'none';
	$GLOBALS['csstidy']['background_prop_default']['background-size'] = 'auto';
	$GLOBALS['csstidy']['background_prop_default']['background-repeat'] = 'repeat';
	$GLOBALS['csstidy']['background_prop_default']['background-position'] = '0 0';
	$GLOBALS['csstidy']['background_prop_default']['background-attachment'] = 'scroll';
	$GLOBALS['csstidy']['background_prop_default']['background-clip'] = 'border';
	$GLOBALS['csstidy']['background_prop_default']['background-origin'] = 'padding';
	$GLOBALS['csstidy']['background_prop_default']['background-color'] = 'transparent';
	
	/**
	 * A list of non-W3C color names which get replaced by their hex-codes
	 *
	 * @global array $GLOBALS['csstidy']['replace_colors']
	 * @see cut_color()
	 * @version 1.0
	 */
	$GLOBALS['csstidy']['replace_colors'] = array();
	$GLOBALS['csstidy']['replace_colors']['aliceblue'] = '#F0F8FF';
	$GLOBALS['csstidy']['replace_colors']['antiquewhite'] = '#FAEBD7';
	$GLOBALS['csstidy']['replace_colors']['aquamarine'] = '#7FFFD4';
	$GLOBALS['csstidy']['replace_colors']['azure'] = '#F0FFFF';
	$GLOBALS['csstidy']['replace_colors']['beige'] = '#F5F5DC';
	$GLOBALS['csstidy']['replace_colors']['bisque'] = '#FFE4C4';
	$GLOBALS['csstidy']['replace_colors']['blanchedalmond'] = '#FFEBCD';
	$GLOBALS['csstidy']['replace_colors']['blueviolet'] = '#8A2BE2';
	$GLOBALS['csstidy']['replace_colors']['brown'] = '#A52A2A';
	$GLOBALS['csstidy']['replace_colors']['burlywood'] = '#DEB887';
	$GLOBALS['csstidy']['replace_colors']['cadetblue'] = '#5F9EA0';
	$GLOBALS['csstidy']['replace_colors']['chartreuse'] = '#7FFF00';
	$GLOBALS['csstidy']['replace_colors']['chocolate'] = '#D2691E';
	$GLOBALS['csstidy']['replace_colors']['coral'] = '#FF7F50';
	$GLOBALS['csstidy']['replace_colors']['cornflowerblue'] = '#6495ED';
	$GLOBALS['csstidy']['replace_colors']['cornsilk'] = '#FFF8DC';
	$GLOBALS['csstidy']['replace_colors']['crimson'] = '#DC143C';
	$GLOBALS['csstidy']['replace_colors']['cyan'] = '#00FFFF';
	$GLOBALS['csstidy']['replace_colors']['darkblue'] = '#00008B';
	$GLOBALS['csstidy']['replace_colors']['darkcyan'] = '#008B8B';
	$GLOBALS['csstidy']['replace_colors']['darkgoldenrod'] = '#B8860B';
	$GLOBALS['csstidy']['replace_colors']['darkgray'] = '#A9A9A9';
	$GLOBALS['csstidy']['replace_colors']['darkgreen'] = '#006400';
	$GLOBALS['csstidy']['replace_colors']['darkkhaki'] = '#BDB76B';
	$GLOBALS['csstidy']['replace_colors']['darkmagenta'] = '#8B008B';
	$GLOBALS['csstidy']['replace_colors']['darkolivegreen'] = '#556B2F';
	$GLOBALS['csstidy']['replace_colors']['darkorange'] = '#FF8C00';
	$GLOBALS['csstidy']['replace_colors']['darkorchid'] = '#9932CC';
	$GLOBALS['csstidy']['replace_colors']['darkred'] = '#8B0000';
	$GLOBALS['csstidy']['replace_colors']['darksalmon'] = '#E9967A';
	$GLOBALS['csstidy']['replace_colors']['darkseagreen'] = '#8FBC8F';
	$GLOBALS['csstidy']['replace_colors']['darkslateblue'] = '#483D8B';
	$GLOBALS['csstidy']['replace_colors']['darkslategray'] = '#2F4F4F';
	$GLOBALS['csstidy']['replace_colors']['darkturquoise'] = '#00CED1';
	$GLOBALS['csstidy']['replace_colors']['darkviolet'] = '#9400D3';
	$GLOBALS['csstidy']['replace_colors']['deeppink'] = '#FF1493';
	$GLOBALS['csstidy']['replace_colors']['deepskyblue'] = '#00BFFF';
	$GLOBALS['csstidy']['replace_colors']['dimgray'] = '#696969';
	$GLOBALS['csstidy']['replace_colors']['dodgerblue'] = '#1E90FF';
	$GLOBALS['csstidy']['replace_colors']['feldspar'] = '#D19275';
	$GLOBALS['csstidy']['replace_colors']['firebrick'] = '#B22222';
	$GLOBALS['csstidy']['replace_colors']['floralwhite'] = '#FFFAF0';
	$GLOBALS['csstidy']['replace_colors']['forestgreen'] = '#228B22';
	$GLOBALS['csstidy']['replace_colors']['gainsboro'] = '#DCDCDC';
	$GLOBALS['csstidy']['replace_colors']['ghostwhite'] = '#F8F8FF';
	$GLOBALS['csstidy']['replace_colors']['gold'] = '#FFD700';
	$GLOBALS['csstidy']['replace_colors']['goldenrod'] = '#DAA520';
	$GLOBALS['csstidy']['replace_colors']['greenyellow'] = '#ADFF2F';
	$GLOBALS['csstidy']['replace_colors']['honeydew'] = '#F0FFF0';
	$GLOBALS['csstidy']['replace_colors']['hotpink'] = '#FF69B4';
	$GLOBALS['csstidy']['replace_colors']['indianred'] = '#CD5C5C';
	$GLOBALS['csstidy']['replace_colors']['indigo'] = '#4B0082';
	$GLOBALS['csstidy']['replace_colors']['ivory'] = '#FFFFF0';
	$GLOBALS['csstidy']['replace_colors']['khaki'] = '#F0E68C';
	$GLOBALS['csstidy']['replace_colors']['lavender'] = '#E6E6FA';
	$GLOBALS['csstidy']['replace_colors']['lavenderblush'] = '#FFF0F5';
	$GLOBALS['csstidy']['replace_colors']['lawngreen'] = '#7CFC00';
	$GLOBALS['csstidy']['replace_colors']['lemonchiffon'] = '#FFFACD';
	$GLOBALS['csstidy']['replace_colors']['lightblue'] = '#ADD8E6';
	$GLOBALS['csstidy']['replace_colors']['lightcoral'] = '#F08080';
	$GLOBALS['csstidy']['replace_colors']['lightcyan'] = '#E0FFFF';
	$GLOBALS['csstidy']['replace_colors']['lightgoldenrodyellow'] = '#FAFAD2';
	$GLOBALS['csstidy']['replace_colors']['lightgrey'] = '#D3D3D3';
	$GLOBALS['csstidy']['replace_colors']['lightgreen'] = '#90EE90';
	$GLOBALS['csstidy']['replace_colors']['lightpink'] = '#FFB6C1';
	$GLOBALS['csstidy']['replace_colors']['lightsalmon'] = '#FFA07A';
	$GLOBALS['csstidy']['replace_colors']['lightseagreen'] = '#20B2AA';
	$GLOBALS['csstidy']['replace_colors']['lightskyblue'] = '#87CEFA';
	$GLOBALS['csstidy']['replace_colors']['lightslateblue'] = '#8470FF';
	$GLOBALS['csstidy']['replace_colors']['lightslategray'] = '#778899';
	$GLOBALS['csstidy']['replace_colors']['lightsteelblue'] = '#B0C4DE';
	$GLOBALS['csstidy']['replace_colors']['lightyellow'] = '#FFFFE0';
	$GLOBALS['csstidy']['replace_colors']['limegreen'] = '#32CD32';
	$GLOBALS['csstidy']['replace_colors']['linen'] = '#FAF0E6';
	$GLOBALS['csstidy']['replace_colors']['magenta'] = '#FF00FF';
	$GLOBALS['csstidy']['replace_colors']['mediumaquamarine'] = '#66CDAA';
	$GLOBALS['csstidy']['replace_colors']['mediumblue'] = '#0000CD';
	$GLOBALS['csstidy']['replace_colors']['mediumorchid'] = '#BA55D3';
	$GLOBALS['csstidy']['replace_colors']['mediumpurple'] = '#9370D8';
	$GLOBALS['csstidy']['replace_colors']['mediumseagreen'] = '#3CB371';
	$GLOBALS['csstidy']['replace_colors']['mediumslateblue'] = '#7B68EE';
	$GLOBALS['csstidy']['replace_colors']['mediumspringgreen'] = '#00FA9A';
	$GLOBALS['csstidy']['replace_colors']['mediumturquoise'] = '#48D1CC';
	$GLOBALS['csstidy']['replace_colors']['mediumvioletred'] = '#C71585';
	$GLOBALS['csstidy']['replace_colors']['midnightblue'] = '#191970';
	$GLOBALS['csstidy']['replace_colors']['mintcream'] = '#F5FFFA';
	$GLOBALS['csstidy']['replace_colors']['mistyrose'] = '#FFE4E1';
	$GLOBALS['csstidy']['replace_colors']['moccasin'] = '#FFE4B5';
	$GLOBALS['csstidy']['replace_colors']['navajowhite'] = '#FFDEAD';
	$GLOBALS['csstidy']['replace_colors']['oldlace'] = '#FDF5E6';
	$GLOBALS['csstidy']['replace_colors']['olivedrab'] = '#6B8E23';
	$GLOBALS['csstidy']['replace_colors']['orangered'] = '#FF4500';
	$GLOBALS['csstidy']['replace_colors']['orchid'] = '#DA70D6';
	$GLOBALS['csstidy']['replace_colors']['palegoldenrod'] = '#EEE8AA';
	$GLOBALS['csstidy']['replace_colors']['palegreen'] = '#98FB98';
	$GLOBALS['csstidy']['replace_colors']['paleturquoise'] = '#AFEEEE';
	$GLOBALS['csstidy']['replace_colors']['palevioletred'] = '#D87093';
	$GLOBALS['csstidy']['replace_colors']['papayawhip'] = '#FFEFD5';
	$GLOBALS['csstidy']['replace_colors']['peachpuff'] = '#FFDAB9';
	$GLOBALS['csstidy']['replace_colors']['peru'] = '#CD853F';
	$GLOBALS['csstidy']['replace_colors']['pink'] = '#FFC0CB';
	$GLOBALS['csstidy']['replace_colors']['plum'] = '#DDA0DD';
	$GLOBALS['csstidy']['replace_colors']['powderblue'] = '#B0E0E6';
	$GLOBALS['csstidy']['replace_colors']['rosybrown'] = '#BC8F8F';
	$GLOBALS['csstidy']['replace_colors']['royalblue'] = '#4169E1';
	$GLOBALS['csstidy']['replace_colors']['saddlebrown'] = '#8B4513';
	$GLOBALS['csstidy']['replace_colors']['salmon'] = '#FA8072';
	$GLOBALS['csstidy']['replace_colors']['sandybrown'] = '#F4A460';
	$GLOBALS['csstidy']['replace_colors']['seagreen'] = '#2E8B57';
	$GLOBALS['csstidy']['replace_colors']['seashell'] = '#FFF5EE';
	$GLOBALS['csstidy']['replace_colors']['sienna'] = '#A0522D';
	$GLOBALS['csstidy']['replace_colors']['skyblue'] = '#87CEEB';
	$GLOBALS['csstidy']['replace_colors']['slateblue'] = '#6A5ACD';
	$GLOBALS['csstidy']['replace_colors']['slategray'] = '#708090';
	$GLOBALS['csstidy']['replace_colors']['snow'] = '#FFFAFA';
	$GLOBALS['csstidy']['replace_colors']['springgreen'] = '#00FF7F';
	$GLOBALS['csstidy']['replace_colors']['steelblue'] = '#4682B4';
	$GLOBALS['csstidy']['replace_colors']['tan'] = '#D2B48C';
	$GLOBALS['csstidy']['replace_colors']['thistle'] = '#D8BFD8';
	$GLOBALS['csstidy']['replace_colors']['tomato'] = '#FF6347';
	$GLOBALS['csstidy']['replace_colors']['turquoise'] = '#40E0D0';
	$GLOBALS['csstidy']['replace_colors']['violet'] = '#EE82EE';
	$GLOBALS['csstidy']['replace_colors']['violetred'] = '#D02090';
	$GLOBALS['csstidy']['replace_colors']['wheat'] = '#F5DEB3';
	$GLOBALS['csstidy']['replace_colors']['whitesmoke'] = '#F5F5F5';
	$GLOBALS['csstidy']['replace_colors']['yellowgreen'] = '#9ACD32';
	
	
	/**
	 * A list of all shorthand properties that are devided into four properties and/or have four subvalues
	 *
	 * @global array $GLOBALS['csstidy']['shorthands']
	 * @todo Are there new ones in CSS3?
	 * @see dissolve_4value_shorthands()
	 * @see merge_4value_shorthands()
	 * @version 1.0
	 */
	$GLOBALS['csstidy']['shorthands'] = array();
	$GLOBALS['csstidy']['shorthands']['border-color'] = array('border-top-color','border-right-color','border-bottom-color','border-left-color');
	$GLOBALS['csstidy']['shorthands']['border-style'] = array('border-top-style','border-right-style','border-bottom-style','border-left-style');
	$GLOBALS['csstidy']['shorthands']['border-width'] = array('border-top-width','border-right-width','border-bottom-width','border-left-width');
	$GLOBALS['csstidy']['shorthands']['margin'] = array('margin-top','margin-right','margin-bottom','margin-left');
	$GLOBALS['csstidy']['shorthands']['padding'] = array('padding-top','padding-right','padding-bottom','padding-left');
	$GLOBALS['csstidy']['shorthands']['-moz-border-radius'] = 0;
	
	/**
	 * All CSS Properties. Needed for csstidy::property_is_next()
	 *
	 * @global array $GLOBALS['csstidy']['all_properties']
	 * @todo Add CSS3 properties
	 * @version 1.0
	 * @see csstidy::property_is_next()
	 */
	$GLOBALS['csstidy']['all_properties'] = array();
	$GLOBALS['csstidy']['all_properties']['background'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['background-color'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['background-image'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['background-repeat'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['background-attachment'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['background-position'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-top'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-right'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-bottom'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-left'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-color'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-top-color'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-bottom-color'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-left-color'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-right-color'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-style'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-top-style'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-right-style'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-left-style'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-bottom-style'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-width'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-top-width'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-right-width'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-left-width'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-bottom-width'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-collapse'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['border-spacing'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['bottom'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['caption-side'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['content'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['clear'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['clip'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['color'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['counter-reset'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['counter-increment'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['cursor'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['empty-cells'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['display'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['direction'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['float'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['font'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['font-family'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['font-style'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['font-variant'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['font-weight'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['font-stretch'] = 'CSS2.0';
	$GLOBALS['csstidy']['all_properties']['font-size-adjust'] = 'CSS2.0';
	$GLOBALS['csstidy']['all_properties']['font-size'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['height'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['left'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['line-height'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['list-style'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['list-style-type'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['list-style-image'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['list-style-position'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['margin'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['margin-top'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['margin-right'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['margin-bottom'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['margin-left'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['marks'] = 'CSS1.0,CSS2.0';
	$GLOBALS['csstidy']['all_properties']['marker-offset'] = 'CSS2.0';
	$GLOBALS['csstidy']['all_properties']['max-height'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['max-width'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['min-height'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['min-width'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['overflow'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['orphans'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['outline'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['outline-width'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['outline-style'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['outline-color'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['padding'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['padding-top'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['padding-right'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['padding-bottom'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['padding-left'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['page-break-before'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['page-break-after'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['page-break-inside'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['page'] = 'CSS2.0';
	$GLOBALS['csstidy']['all_properties']['position'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['quotes'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['right'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['size'] = 'CSS1.0,CSS2.0';
	$GLOBALS['csstidy']['all_properties']['speak-header'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['table-layout'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['top'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['text-indent'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['text-align'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['text-decoration'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['text-shadow'] = 'CSS2.0';
	$GLOBALS['csstidy']['all_properties']['letter-spacing'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['word-spacing'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['text-transform'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['white-space'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['unicode-bidi'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['vertical-align'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['visibility'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['width'] = 'CSS1.0,CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['widows'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['z-index'] = 'CSS1.0,CSS2.0,CSS2.1';
	/* Speech */
	$GLOBALS['csstidy']['all_properties']['volume'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['speak'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['pause'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['pause-before'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['pause-after'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['cue'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['cue-before'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['cue-after'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['play-during'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['azimuth'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['elevation'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['speech-rate'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['voice-family'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['pitch'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['pitch-range'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['stress'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['richness'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['speak-punctuation'] = 'CSS2.0,CSS2.1';
	$GLOBALS['csstidy']['all_properties']['speak-numeral'] = 'CSS2.0,CSS2.1';
	
	/**
	 * An array containing all predefined templates.
	 *
	 * @global array $GLOBALS['csstidy']['predefined_templates']
	 * @version 1.0
	 * @see csstidy::load_template()
	 */
	$GLOBALS['csstidy']['predefined_templates']['default'][] = '<span class="at">'; //string before @rule
	$GLOBALS['csstidy']['predefined_templates']['default'][] = '</span> <span class="format">{</span>'."\n"; //bracket after @-rule
	$GLOBALS['csstidy']['predefined_templates']['default'][] = '<span class="selector">'; //string before selector
	$GLOBALS['csstidy']['predefined_templates']['default'][] = '</span> <span class="format">{</span>'."\n"; //bracket after selector
	$GLOBALS['csstidy']['predefined_templates']['default'][] = '<span class="property">'; //string before property
	$GLOBALS['csstidy']['predefined_templates']['default'][] = '</span><span class="value">'; //string after property+before value
	$GLOBALS['csstidy']['predefined_templates']['default'][] = '</span><span class="format">;</span>'."\n"; //string after value
	$GLOBALS['csstidy']['predefined_templates']['default'][] = '<span class="format">}</span>'; //closing bracket - selector
	$GLOBALS['csstidy']['predefined_templates']['default'][] = "\n\n"; //space between blocks {...}
	$GLOBALS['csstidy']['predefined_templates']['default'][] = "\n".'<span class="format">}</span>'. "\n\n"; //closing bracket @-rule
	$GLOBALS['csstidy']['predefined_templates']['default'][] = ''; //indent in @-rule
	$GLOBALS['csstidy']['predefined_templates']['default'][] = '<span class="comment">'; // before comment
	$GLOBALS['csstidy']['predefined_templates']['default'][] = '</span>'."\n"; // after comment
	$GLOBALS['csstidy']['predefined_templates']['default'][] = "\n"; // after last line @-rule
	
	$GLOBALS['csstidy']['predefined_templates']['high_compression'][] = '<span class="at">';
	$GLOBALS['csstidy']['predefined_templates']['high_compression'][] = '</span> <span class="format">{</span>'."\n";
	$GLOBALS['csstidy']['predefined_templates']['high_compression'][] = '<span class="selector">';
	$GLOBALS['csstidy']['predefined_templates']['high_compression'][] = '</span><span class="format">{</span>';
	$GLOBALS['csstidy']['predefined_templates']['high_compression'][] = '<span class="property">';
	$GLOBALS['csstidy']['predefined_templates']['high_compression'][] = '</span><span class="value">';
	$GLOBALS['csstidy']['predefined_templates']['high_compression'][] = '</span><span class="format">;</span>';
	$GLOBALS['csstidy']['predefined_templates']['high_compression'][] = '<span class="format">}</span>';
	$GLOBALS['csstidy']['predefined_templates']['high_compression'][] = "\n";
	$GLOBALS['csstidy']['predefined_templates']['high_compression'][] = "\n". '<span class="format">}'."\n".'</span>';
	$GLOBALS['csstidy']['predefined_templates']['high_compression'][] = '';
	$GLOBALS['csstidy']['predefined_templates']['high_compression'][] = '<span class="comment">'; // before comment
	$GLOBALS['csstidy']['predefined_templates']['high_compression'][] = '</span>'; // after comment
	$GLOBALS['csstidy']['predefined_templates']['high_compression'][] = "\n";
	
	$GLOBALS['csstidy']['predefined_templates']['highest_compression'][] = '<span class="at">';
	$GLOBALS['csstidy']['predefined_templates']['highest_compression'][] = '</span><span class="format">{</span>';
	$GLOBALS['csstidy']['predefined_templates']['highest_compression'][] = '<span class="selector">';
	$GLOBALS['csstidy']['predefined_templates']['highest_compression'][] = '</span><span class="format">{</span>';
	$GLOBALS['csstidy']['predefined_templates']['highest_compression'][] = '<span class="property">';
	$GLOBALS['csstidy']['predefined_templates']['highest_compression'][] = '</span><span class="value">';
	$GLOBALS['csstidy']['predefined_templates']['highest_compression'][] = '</span><span class="format">;</span>';
	$GLOBALS['csstidy']['predefined_templates']['highest_compression'][] = '<span class="format">}</span>';
	$GLOBALS['csstidy']['predefined_templates']['highest_compression'][] = '';
	$GLOBALS['csstidy']['predefined_templates']['highest_compression'][] = '<span class="format">}</span>';
	$GLOBALS['csstidy']['predefined_templates']['highest_compression'][] = '';
	$GLOBALS['csstidy']['predefined_templates']['highest_compression'][] = '<span class="comment">'; // before comment
	$GLOBALS['csstidy']['predefined_templates']['highest_compression'][] = '</span>'; // after comment
	$GLOBALS['csstidy']['predefined_templates']['highest_compression'][] = '';
	
	$GLOBALS['csstidy']['predefined_templates']['low_compression'][] = '<span class="at">';
	$GLOBALS['csstidy']['predefined_templates']['low_compression'][] = '</span> <span class="format">{</span>'."\n";
	$GLOBALS['csstidy']['predefined_templates']['low_compression'][] = '<span class="selector">';
	$GLOBALS['csstidy']['predefined_templates']['low_compression'][] = '</span>'."\n".'<span class="format">{</span>'."\n";
	$GLOBALS['csstidy']['predefined_templates']['low_compression'][] = '	<span class="property">';
	$GLOBALS['csstidy']['predefined_templates']['low_compression'][] = '</span><span class="value">';
	$GLOBALS['csstidy']['predefined_templates']['low_compression'][] = '</span><span class="format">;</span>'."\n";
	$GLOBALS['csstidy']['predefined_templates']['low_compression'][] = '<span class="format">}</span>';
	$GLOBALS['csstidy']['predefined_templates']['low_compression'][] = "\n\n";
	$GLOBALS['csstidy']['predefined_templates']['low_compression'][] = "\n".'<span class="format">}</span>'."\n\n";
	$GLOBALS['csstidy']['predefined_templates']['low_compression'][] = '	';
	$GLOBALS['csstidy']['predefined_templates']['low_compression'][] = '<span class="comment">'; // before comment
	$GLOBALS['csstidy']['predefined_templates']['low_compression'][] = '</span>'."\n"; // after comment
	$GLOBALS['csstidy']['predefined_templates']['low_compression'][] = "\n";

/**
 * Contains a class for printing CSS code
 *
 * @version 1.0
 */
/**
 * CSSTidy - CSS Parser and Optimiser
 *
 * CSS Printing class
 * This class prints CSS data generated by csstidy.
 *
 * This file is part of CSSTidy.
 *
 * CSSTidy is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * CSSTidy is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with CSSTidy; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
 * @package csstidy
 * @author Florian Schmitz (floele at gmail dot com) 2005-2006
 */

	/**
	 * CSS Printing class
	 *
	 * This class prints CSS data generated by csstidy.
	 *
	 * @package csstidy
	 * @author Florian Schmitz (floele at gmail dot com) 2005-2006
	 * @version 1.0
	 */
	
	class csstidy_print
	{
	    /**
	     * Saves the input CSS string
	     * @var string
	     * @access private
	     */
	    var $input_css = '';
	
	    /**
	     * Saves the formatted CSS string
	     * @var string
	     * @access public
	     */
	    var $output_css = '';
	
	    /**
	     * Saves the formatted CSS string (plain text)
	     * @var string
	     * @access public
	     */
	    var $output_css_plain = '';
	
	    /**
	     * Constructor
	     * @param array $css contains the class csstidy
	     * @access private
	     * @version 1.0
	     */
	    function csstidy_print(&$css)
	    {
	        $this->parser    =& $css;
	        $this->css       =& $css->css;
	        $this->template  =& $css->template;
	        $this->tokens    =& $css->tokens;
	        $this->charset   =& $css->charset;
	        $this->import    =& $css->import;
	        $this->namespace =& $css->namespace;
	    }
	
	    /**
	     * Resets output_css and output_css_plain (new css code)
	     * @access private
	     * @version 1.0
	     */
	    function _reset()
	    {
	        $this->output_css = '';
	        $this->output_css_plain = '';
	    }
	
	    /**
	     * Returns the CSS code as plain text
	     * @return string
	     * @access public
	     * @version 1.0
	     */
	    function plain()
	    {
	        $this->_print(true);
	        return $this->output_css_plain;
	    }
	
	    /**
	     * Returns the formatted CSS code
	     * @return string
	     * @access public
	     * @version 1.0
	     */
	    function formatted()
	    {
	        $this->_print(false);
	        return $this->output_css;
	    }
	
	    /**
	     * Returns the formatted CSS Code and saves it into $this->output_css and $this->output_css_plain
	     * @param bool $plain plain text or not
	     * @access private
	     * @version 2.0
	     */
	    function _print($plain = false)
	    {
	        if ($this->output_css && $this->output_css_plain) {
	            return;
	        }
	
	        $output = '';
	        if (!$this->parser->get_cfg('preserve_css')) {
	            $this->_convert_raw_css();
	        }
	
	        $template =& $this->template;
	
	        if ($plain) {
	            $template = array_map('strip_tags', $template);
	        }
	
	        if ($this->parser->get_cfg('timestamp')) {
	            array_unshift($this->tokens, array(COMMENT, ' CSSTidy ' . $this->parser->version . ': ' . date('r') . ' '));
	        }
	
	        if (!empty($this->charset)) {
	            $output .= $template[0].'@charset '.$template[5].$this->charset.$template[6];
	        }
	
	        if (!empty($this->import)) {
	            for ($i = 0, $size = count($this->import); $i < $size; $i ++) {
	                $output .= $template[0].'@import '.$template[5].$this->import[$i].$template[6];
	            }
	        }
	
	        if (!empty($this->namespace)) {
	            $output .= $template[0].'@namespace '.$template[5].$this->namespace.$template[6];
	        }
	
	        $output .= $template[13];
	        $in_at_out = '';
	        $out =& $output;
	
	        foreach ($this->tokens as $key => $token)
	        {
	            switch ($token[0])
	            {
	                case AT_START:
	                    $out .= $template[0].$this->_htmlsp($token[1], $plain).$template[1];
	                    $out =& $in_at_out;
	                    break;
	
	                case SEL_START:
	                    if($this->parser->get_cfg('lowercase_s')) $token[1] = strtolower($token[1]);
	                    $out .= ($token[1]{0} !== '@') ? $template[2].$this->_htmlsp($token[1], $plain) : $template[0].$this->_htmlsp($token[1], $plain);
	                    $out .= $template[3];
	                    break;
	
	                case PROPERTY:
	                    if($this->parser->get_cfg('case_properties') == 2) $token[1] = strtoupper($token[1]);
	                    if($this->parser->get_cfg('case_properties') == 1) $token[1] = strtolower($token[1]);
	                    $out .= $template[4] . $this->_htmlsp($token[1], $plain) . ':' . $template[5];
	                    break;
	
	                case VALUE:
	                    $out .= $this->_htmlsp($token[1], $plain);
	                    if($this->_seeknocomment($key, 1) == SEL_END && $this->parser->get_cfg('remove_last_;')) {
	                        $out .= str_replace(';', '', $template[6]);
	                    } else {
	                        $out .= $template[6];
	                    }
	                    break;
	
	                case SEL_END:
	                    $out .= $template[7];
	                    if($this->_seeknocomment($key, 1) != AT_END) $out .= $template[8];
	                    break;
	
	                case AT_END:
	                    $out =& $output;
	                    $out .= $template[10] . str_replace("\n", "\n" . $template[10], $in_at_out);
	                    $in_at_out = '';
	                    $out .= $template[9];
	                    break;
	
	                case COMMENT:
	                    $out .= $template[11] . '/*' . $this->_htmlsp($token[1], $plain) . '*/' . $template[12];
	                    break;
	            }
	        }
	
	        $output = trim($output);
	
	        if (!$plain) {
	            $this->output_css = $output;
	            $this->_print(true);
	        } else {
	            $this->output_css_plain = $output;
	        }
	    }
	
	    /**
	     * Gets the next token type which is $move away from $key, excluding comments
	     * @param integer $key current position
	     * @param integer $move move this far
	     * @return mixed a token type
	     * @access private
	     * @version 1.0
	     */
	    function _seeknocomment($key, $move) {
	        $go = ($move > 0) ? 1 : -1;
	        for ($i = $key + 1; abs($key-$i)-1 < abs($move); $i += $go) {
	            if (!isset($this->tokens[$i])) {
	                return;
	            }
	            if ($this->tokens[$i][0] == COMMENT) {
	                $move += 1;
	                continue;
	            }
	            return $this->tokens[$i][0];
	        }
	    }
	
	    /**
	     * Converts $this->css array to a raw array ($this->tokens)
	     * @access private
	     * @version 1.0
	     */
	    function _convert_raw_css()
	    {
	        $this->tokens = array();
	
	        foreach ($this->css as $medium => $val)
	        {
	            if ($this->parser->get_cfg('sort_selectors')) ksort($val);
	            if ($medium != DEFAULT_AT) {
	                $this->parser->_add_token(AT_START, $medium, true);
	            }
	
	            foreach ($val as $selector => $vali)
	            {
	                if ($this->parser->get_cfg('sort_properties')) ksort($vali);
	                $this->parser->_add_token(SEL_START, $selector, true);
	
	                foreach ($vali as $property => $valj)
	                {
	                    $this->parser->_add_token(PROPERTY, $property, true);
	                    $this->parser->_add_token(VALUE, $valj, true);
	                }
	
	                $this->parser->_add_token(SEL_END, $selector, true);
	            }
	
	            if ($medium != DEFAULT_AT) {
	                $this->parser->_add_token(AT_END, $medium, true);
	            }
	        }
	    }
	
	    /**
	     * Same as htmlspecialchars, only that chars are not replaced if $plain !== true. This makes  print_code() cleaner.
	     * @param string $string
	     * @param bool $plain
	     * @return string
	     * @see csstidy_print::_print()
	     * @access private
	     * @version 1.0
	     */
	    function _htmlsp($string, $plain)
	    {
	        if (!$plain) {
	            return htmlspecialchars($string);
	        }
	        return $string;
	    }
	
	    /**
	     * Get compression ratio
	     * @access public
	     * @return float
	     * @version 1.2
	     */
	    function get_ratio()
	    {
	        if (!$this->output_css_plain) {
	            $this->formatted();
	        }
	        return round((strlen($this->input_css) - strlen($this->output_css_plain)) / strlen($this->input_css), 3) * 100;
	    }
	
	    /**
	     * Get difference between the old and new code in bytes and prints the code if necessary.
	     * @access public
	     * @return string
	     * @version 1.1
	     */
	    function get_diff()
	    {
	        if (!$this->output_css_plain) {
	            $this->formatted();
	        }
	
	        $diff = strlen($this->output_css_plain) - strlen($this->input_css);
	
	        if ($diff > 0) {
	            return '+' . $diff;
	        } elseif ($diff == 0) {
	            return '+-' . $diff;
	        }
	
	        return $diff;
	    }
	
	    /**
	     * Get the size of either input or output CSS in KB
	     * @param string $loc default is "output"
	     * @access public
	     * @return integer
	     * @version 1.0
	     */
	    function size($loc = 'output')
	    {
	        if ($loc == 'output' && !$this->output_css) {
	            $this->formatted();
	        }
	
	        if ($loc == 'input') {
	            return (strlen($this->input_css) / 1000);
	        } else {
	            return (strlen($this->output_css_plain) / 1000);
	        }
	    }
	}	

/**
 * Contains a class for optimising CSS code
 *
 * @version 1.0
 */
/**
 * CSSTidy - CSS Parser and Optimiser
 *
 * CSS Optimising Class
 * This class optimises CSS data generated by csstidy.
 *
 * This file is part of CSSTidy.
 *
 * CSSTidy is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * CSSTidy is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with CSSTidy; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
 * @package csstidy
 * @author Florian Schmitz (floele at gmail dot com) 2005-2006
 */

/**
 * CSS Optimising Class
 *
 * This class optimises CSS data generated by csstidy.
 *
 * @package csstidy
 * @author Florian Schmitz (floele at gmail dot com) 2005-2006
 * @version 1.0
 */

	class csstidy_optimise
	{
	    /**
	     * Constructor
	     * @param array $css contains the class csstidy
	     * @access private
	     * @version 1.0
	     */
	    function csstidy_optimise(&$css)
	    {
	        $this->parser    =& $css;
	        $this->css       =& $css->css;
	        $this->sub_value =& $css->sub_value;
	        $this->at        =& $css->at;
	        $this->selector  =& $css->selector;
	        $this->property  =& $css->property;
	        $this->value     =& $css->value;
	    }
	
	    /**
	     * Optimises $css after parsing
	     * @access public
	     * @version 1.0
	     */
	    function postparse()
	    {
	        if ($this->parser->get_cfg('preserve_css')) {
	            return;
	        }
	
	        if ($this->parser->get_cfg('merge_selectors') == 2)
	        {
	            foreach ($this->css as $medium => $value)
	            {
	                $this->merge_selectors($this->css[$medium]);
	            }
	        }
	
	        if ($this->parser->get_cfg('optimise_shorthands') > 0)
	        {
	            foreach ($this->css as $medium => $value)
	            {
	                foreach ($value as $selector => $value1)
	                {
	                    $this->css[$medium][$selector] = csstidy_optimise::merge_4value_shorthands($this->css[$medium][$selector]);
	
	                    if ($this->parser->get_cfg('optimise_shorthands') < 2) {
	                        continue;
	                    }
	
	                    $this->css[$medium][$selector] = csstidy_optimise::merge_bg($this->css[$medium][$selector]);
	                    if (empty($this->css[$medium][$selector])) {
	                        unset($this->css[$medium][$selector]);
	                    }
	                }
	            }
	        }
	    }
	
	    /**
	     * Optimises values
	     * @access public
	     * @version 1.0
	     */
	    function value()
	    {
	        $shorthands =& $GLOBALS['csstidy']['shorthands'];
	
	        // optimise shorthand properties
	        if(isset($shorthands[$this->property]))
	        {
	            $temp = csstidy_optimise::shorthand($this->value); // FIXME - move
	            if($temp != $this->value)
	            {
	                $this->parser->log('Optimised shorthand notation ('.$this->property.'): Changed "'.$this->value.'" to "'.$temp.'"','Information');
	            }
	            $this->value = $temp;
	        }
	
	        // Remove whitespace at ! important
	        if($this->value != $this->compress_important($this->value))
	        {
	            $this->parser->log('Optimised !important','Information');
	        }
	    }
	
	    /**
	     * Optimises shorthands
	     * @access public
	     * @version 1.0
	     */
	    function shorthands()
	    {
	        $shorthands =& $GLOBALS['csstidy']['shorthands'];
	
	        if(!$this->parser->get_cfg('optimise_shorthands') || $this->parser->get_cfg('preserve_css')) {
	            return;
	        }
	
	        if($this->property == 'background' && $this->parser->get_cfg('optimise_shorthands') > 1)
	        {
	            unset($this->css[$this->at][$this->selector]['background']);
	            $this->parser->merge_css_blocks($this->at,$this->selector,csstidy_optimise::dissolve_short_bg($this->value));
	        }
	        if(isset($shorthands[$this->property]))
	        {
	            $this->parser->merge_css_blocks($this->at,$this->selector,csstidy_optimise::dissolve_4value_shorthands($this->property,$this->value));
	            if(is_array($shorthands[$this->property]))
	            {
	                unset($this->css[$this->at][$this->selector][$this->property]);
	            }
	        }
	    }
	
	    /**
	     * Optimises a sub-value
	     * @access public
	     * @version 1.0
	     */
	    function subvalue()
	    {
	        $replace_colors =& $GLOBALS['csstidy']['replace_colors'];
	
	        $this->sub_value = trim($this->sub_value);
	        if($this->sub_value == '') // caution : '0'
	        {
	            return;
	        }
	
	        $important = '';
	        if(csstidy::is_important($this->sub_value))
	        {
	            $important = '!important';
	        }
	        $this->sub_value = csstidy::gvw_important($this->sub_value);
	
	        // Compress font-weight
	        if($this->property == 'font-weight' && $this->parser->get_cfg('compress_font-weight'))
	        {
	            if($this->sub_value == 'bold')
	            {
	                $this->sub_value = '700';
	                $this->parser->log('Optimised font-weight: Changed "bold" to "700"','Information');
	            }
	            else if($this->sub_value == 'normal')
	            {
	                $this->sub_value = '400';
	                $this->parser->log('Optimised font-weight: Changed "normal" to "400"','Information');
	            }
	        }
	
	        $temp = $this->compress_numbers($this->sub_value);
	        if($temp != $this->sub_value)
	        {
	            if(strlen($temp) > strlen($this->sub_value)) {
	                $this->parser->log('Fixed invalid number: Changed "'.$this->sub_value.'" to "'.$temp.'"','Warning');
	            } else {
	                $this->parser->log('Optimised number: Changed "'.$this->sub_value.'" to "'.$temp.'"','Information');
	            }
	            $this->sub_value = $temp;
	        }
	        if($this->parser->get_cfg('compress_colors'))
	        {
	            $temp = $this->cut_color($this->sub_value);
	            if($temp !== $this->sub_value)
	            {
	                if(isset($replace_colors[$this->sub_value])) {
	                    $this->parser->log('Fixed invalid color name: Changed "'.$this->sub_value.'" to "'.$temp.'"','Warning');
	                } else {
	                    $this->parser->log('Optimised color: Changed "'.$this->sub_value.'" to "'.$temp.'"','Information');
	                }
	                $this->sub_value = $temp;
	            }
	        }
	        $this->sub_value .= $important;
	    }
	
	    /**
	     * Compresses shorthand values. Example: margin:1px 1px 1px 1px -> margin:1px
	     * @param string $value
	     * @access public
	     * @return string
	     * @version 1.0
	     */
	    function shorthand($value)
	    {
	        $important = '';
	        if(csstidy::is_important($value))
	        {
	            $values = csstidy::gvw_important($value);
	            $important = '!important';
	        }
	        else $values = $value;
	
	        $values = explode(' ',$values);
	        switch(count($values))
	        {
	            case 4:
	            if($values[0] == $values[1] && $values[0] == $values[2] && $values[0] == $values[3])
	            {
	                return $values[0].$important;
	            }
	            elseif($values[1] == $values[3] && $values[0] == $values[2])
	            {
	                return $values[0].' '.$values[1].$important;
	            }
	            elseif($values[1] == $values[3])
	            {
	                return $values[0].' '.$values[1].' '.$values[2].$important;
	            }
	            break;
	
	            case 3:
	            if($values[0] == $values[1] && $values[0] == $values[2])
	            {
	                return $values[0].$important;
	            }
	            elseif($values[0] == $values[2])
	            {
	                return $values[0].' '.$values[1].$important;
	            }
	            break;
	
	            case 2:
	            if($values[0] == $values[1])
	            {
	                return $values[0].$important;
	            }
	            break;
	        }
	
	        return $value;
	    }
	
	    /**
	     * Removes unnecessary whitespace in ! important
	     * @param string $string
	     * @return string
	     * @access public
	     * @version 1.1
	     */
	    function compress_important(&$string)
	    {
	        if(csstidy::is_important($string))
	        {
	            $string = csstidy::gvw_important($string) . '!important';
	        }
	        return $string;
	    }
	
	    /**
	     * Color compression function. Converts all rgb() values to #-values and uses the short-form if possible. Also replaces 4 color names by #-values.
	     * @param string $color
	     * @return string
	     * @version 1.1
	     */
	    function cut_color($color)
	    {
	        $replace_colors =& $GLOBALS['csstidy']['replace_colors'];
	
	        // rgb(0,0,0) -> #000000 (or #000 in this case later)
	        if(strtolower(substr($color,0,4)) == 'rgb(')
	        {
	            $color_tmp = substr($color,4,strlen($color)-5);
	            $color_tmp = explode(',',$color_tmp);
	            for ( $i = 0; $i < count($color_tmp); $i++ )
	            {
	                $color_tmp[$i] = trim ($color_tmp[$i]);
	                if(substr($color_tmp[$i],-1) == '%')
	                {
	                    $color_tmp[$i] = round((255*$color_tmp[$i])/100);
	                }
	                if($color_tmp[$i]>255) $color_tmp[$i] = 255;
	            }
	            $color = '#';
	            for ($i = 0; $i < 3; $i++ )
	            {
	                if($color_tmp[$i]<16) {
	                    $color .= '0' . dechex($color_tmp[$i]);
	                } else {
	                    $color .= dechex($color_tmp[$i]);
	                }
	            }
	        }
	
	        // Fix bad color names
	        if(isset($replace_colors[strtolower($color)]))
	        {
	            $color = $replace_colors[strtolower($color)];
	        }
	
	        // #aabbcc -> #abc
	        if(strlen($color) == 7)
	        {
	            $color_temp = strtolower($color);
	            if($color_temp{0} == '#' && $color_temp{1} == $color_temp{2} && $color_temp{3} == $color_temp{4} && $color_temp{5} == $color_temp{6})
	            {
	                $color = '#'.$color{1}.$color{3}.$color{5};
	            }
	        }
	
	        switch(strtolower($color))
	        {
	            /* color name -> hex code */
	            case 'black': return '#000';
	            case 'fuchsia': return '#F0F';
	            case 'white': return '#FFF';
	            case 'yellow': return '#FF0';
	
	            /* hex code -> color name */
	            case '#800000': return 'maroon';
	            case '#ffa500': return 'orange';
	            case '#808000': return 'olive';
	            case '#800080': return 'purple';
	            case '#008000': return 'green';
	            case '#000080': return 'navy';
	            case '#008080': return 'teal';
	            case '#c0c0c0': return 'silver';
	            case '#808080': return 'gray';
	            case '#f00': return 'red';
	        }
	
	        return $color;
	    }
	
	    /**
	     * Compresses numbers (ie. 1.0 becomes 1 or 1.100 becomes 1.1 )
	     * @param string $subvalue
	     * @return string
	     * @version 1.2
	     */
	    function compress_numbers($subvalue)
	    {
	        $units =& $GLOBALS['csstidy']['units'];
	        $unit_values =& $GLOBALS['csstidy']['unit_values'];
	        $color_values =& $GLOBALS['csstidy']['color_values'];
	
	        // for font:1em/1em sans-serif...;
	        if($this->property == 'font')
	        {
	            $temp = explode('/',$subvalue);
	        }
	        else
	        {
	            $temp = array($subvalue);
	        }
	        for ($l = 0; $l < count($temp); $l++)
	        {
	            // continue if no numeric value
	            if (!(strlen($temp[$l]) > 0 && ( is_numeric($temp[$l]{0}) || $temp[$l]{0} == '+' || $temp[$l]{0} == '-' ) ))
	            {
	                continue;
	            }
	
	            // Fix bad colors
	            if (in_array($this->property, $color_values))
	            {
	                $temp[$l] = '#'.$temp[$l];
	            }
	
	            if (floatval($temp[$l]) == 0)
	            {
	                $temp[$l] = '0';
	            }
	            else
	            {
	                $unit_found = FALSE;
	                for ($m = 0, $size_4 = count($units); $m < $size_4; $m++)
	                {
	                    if (strpos(strtolower($temp[$l]),$units[$m]) !== FALSE)
	                    {
	                        $temp[$l] = floatval($temp[$l]).$units[$m];
	                        $unit_found = TRUE;
	                        break;
	                    }
	                }
	                if (!$unit_found && in_array($this->property,$unit_values,TRUE))
	                {
	                    $temp[$l] = floatval($temp[$l]).'px';
	                }
	                else if (!$unit_found)
	                {
	                    $temp[$l] = floatval($temp[$l]);
	                }
	                // Remove leading zero
	                if (abs(floatval($temp[$l])) < 1) {
	                    if (floatval($temp[$l]) < 0) {
	                        $temp[$l] = '-' . substr($temp[$l], 2);
	                    } else {
	                        $temp[$l] = substr($temp[$l], 1);
	                    }
	                }
	            }
	        }
	
	        return ((count($temp) > 1) ? $temp[0].'/'.$temp[1] : $temp[0]);
	    }
	
	    /**
	     * Merges selectors with same properties. Example: a{color:red} b{color:red} -> a,b{color:red}
	     * Very basic and has at least one bug. Hopefully there is a replacement soon.
	     * @param array $array
	     * @return array
	     * @access public
	     * @version 1.2
	     */
	    function merge_selectors(&$array)
	    {
	        $css = $array;
	        foreach($css as $key => $value)
	        {
	            if(!isset($css[$key]))
	            {
	                continue;
	            }
	            $newsel = '';
	
	            // Check if properties also exist in another selector
	            $keys = array();
	            // PHP bug (?) without $css = $array; here
	            foreach($css as $selector => $vali)
	            {
	                if($selector == $key)
	                {
	                    continue;
	                }
	
	                if($css[$key] === $vali)
	                {
	                    $keys[] = $selector;
	                }
	            }
	
	            if(!empty($keys))
	            {
	                $newsel = $key;
	                unset($css[$key]);
	                foreach($keys as $selector)
	                {
	                    unset($css[$selector]);
	                    $newsel .= ','.$selector;
	                }
	                $css[$newsel] = $value;
	            }
	        }
	        $array = $css;
	    }
	
	    /**
	     * Dissolves properties like padding:10px 10px 10px to padding-top:10px;padding-bottom:10px;...
	     * @param string $property
	     * @param string $value
	     * @return array
	     * @version 1.0
	     * @see merge_4value_shorthands()
	     */
	    function dissolve_4value_shorthands($property,$value)
	    {
	        $shorthands =& $GLOBALS['csstidy']['shorthands'];
	        if(!is_array($shorthands[$property]))
	        {
	            $return[$property] = $value;
	            return $return;
	        }
	
	        $important = '';
	        if(csstidy::is_important($value))
	        {
	            $value = csstidy::gvw_important($value);
	            $important = '!important';
	        }
	        $values = explode(' ',$value);
	
	
	        $return = array();
	        if(count($values) == 4)
	        {
	            for($i=0;$i<4;$i++)
	            {
	                $return[$shorthands[$property][$i]] = $values[$i].$important;
	            }
	        }
	        elseif(count($values) == 3)
	        {
	            $return[$shorthands[$property][0]] = $values[0].$important;
	            $return[$shorthands[$property][1]] = $values[1].$important;
	            $return[$shorthands[$property][3]] = $values[1].$important;
	            $return[$shorthands[$property][2]] = $values[2].$important;
	        }
	        elseif(count($values) == 2)
	        {
	            for($i=0;$i<4;$i++)
	            {
	                $return[$shorthands[$property][$i]] = (($i % 2 != 0)) ? $values[1].$important : $values[0].$important;
	            }
	        }
	        else
	        {
	            for($i=0;$i<4;$i++)
	            {
	                $return[$shorthands[$property][$i]] = $values[0].$important;
	            }
	        }
	
	        return $return;
	    }
	
	    /**
	     * Explodes a string as explode() does, however, not if $sep is escaped or within a string.
	     * @param string $sep seperator
	     * @param string $string
	     * @return array
	     * @version 1.0
	     */
	    function explode_ws($sep,$string)
	    {
	        $status = 'st';
	        $to = '';
	
	        $output = array();
	        $num = 0;
	        for($i = 0, $len = strlen($string);$i < $len; $i++)
	        {
	            switch($status)
	            {
	                case 'st':
	                if($string{$i} == $sep && !csstidy::escaped($string,$i))
	                {
	                    ++$num;
	                }
	                elseif($string{$i} == '"' || $string{$i} == '\'' || $string{$i} == '(' && !csstidy::escaped($string,$i))
	                {
	                    $status = 'str';
	                    $to = ($string{$i} == '(') ? ')' : $string{$i};
	                    (isset($output[$num])) ? $output[$num] .= $string{$i} : $output[$num] = $string{$i};
	                }
	                else
	                {
	                    (isset($output[$num])) ? $output[$num] .= $string{$i} : $output[$num] = $string{$i};
	                }
	                break;
	
	                case 'str':
	                if($string{$i} == $to && !csstidy::escaped($string,$i))
	                {
	                    $status = 'st';
	                }
	                (isset($output[$num])) ? $output[$num] .= $string{$i} : $output[$num] = $string{$i};
	                break;
	            }
	        }
	
	        if(isset($output[0]))
	        {
	            return $output;
	        }
	        else
	        {
	            return array($output);
	        }
	    }
	
	    /**
	     * Merges Shorthand properties again, the opposite of dissolve_4value_shorthands()
	     * @param array $array
	     * @return array
	     * @version 1.2
	     * @see dissolve_4value_shorthands()
	     */
	    function merge_4value_shorthands($array)
	    {
	        $return = $array;
	        $shorthands =& $GLOBALS['csstidy']['shorthands'];
	
	        foreach($shorthands as $key => $value)
	        {
	            if(isset($array[$value[0]]) && isset($array[$value[1]])
	            && isset($array[$value[2]]) && isset($array[$value[3]]) && $value !== 0)
	            {
	                $return[$key] = '';
	
	                $important = '';
	                for($i = 0; $i < 4; $i++)
	                {
	                    $val = $array[$value[$i]];
	                    if(csstidy::is_important($val))
	                    {
	                        $important = '!important';
	                        $return[$key] .= csstidy::gvw_important($val).' ';
	                    }
	                    else
	                    {
	                        $return[$key] .= $val.' ';
	                    }
	                    unset($return[$value[$i]]);
	                }
	                $return[$key] = csstidy_optimise::shorthand(trim($return[$key].$important));
	            }
	        }
	        return $return;
	    }
	
	    /**
	     * Dissolve background property
	     * @param string $str_value
	     * @return array
	     * @version 1.0
	     * @see merge_bg()
	     * @todo full CSS 3 compliance
	     */
	    function dissolve_short_bg($str_value)
	    {
	        $background_prop_default =& $GLOBALS['csstidy']['background_prop_default'];
	        $repeat = array('repeat','repeat-x','repeat-y','no-repeat','space');
	        $attachment = array('scroll','fixed','local');
	        $clip = array('border','padding');
	        $origin = array('border','padding','content');
	        $pos = array('top','center','bottom','left','right');
	        $important = '';
	        $return = array('background-image' => NULL,'background-size' => NULL,'background-repeat' => NULL,'background-position' => NULL,'background-attachment'=>NULL,'background-clip' => NULL,'background-origin' => NULL,'background-color' => NULL);
	
	        if(csstidy::is_important($str_value))
	        {
	            $important = ' !important';
	            $str_value = csstidy::gvw_important($str_value);
	        }
	
	        $str_value = csstidy_optimise::explode_ws(',',$str_value);
	        for($i = 0; $i < count($str_value); $i++)
	        {
	            $have['clip'] = FALSE; $have['pos'] = FALSE;
	            $have['color'] = FALSE; $have['bg'] = FALSE;
	
	            $str_value[$i] = csstidy_optimise::explode_ws(' ',trim($str_value[$i]));
	
	            for($j = 0; $j < count($str_value[$i]); $j++)
	            {
	                if($have['bg'] === FALSE && (substr($str_value[$i][$j],0,4) == 'url(' || $str_value[$i][$j] === 'none'))
	                {
	                    $return['background-image'] .= $str_value[$i][$j].',';
	                    $have['bg'] = TRUE;
	                }
	                elseif(in_array($str_value[$i][$j],$repeat,TRUE))
	                {
	                    $return['background-repeat'] .= $str_value[$i][$j].',';
	                }
	                elseif(in_array($str_value[$i][$j],$attachment,TRUE))
	                {
	                    $return['background-attachment'] .= $str_value[$i][$j].',';
	                }
	                elseif(in_array($str_value[$i][$j],$clip,TRUE) && !$have['clip'])
	                {
	                    $return['background-clip'] .= $str_value[$i][$j].',';
	                    $have['clip'] = TRUE;
	                }
	                elseif(in_array($str_value[$i][$j],$origin,TRUE))
	                {
	                    $return['background-origin'] .= $str_value[$i][$j].',';
	                }
	                elseif($str_value[$i][$j]{0} == '(')
	                {
	                    $return['background-size'] .= substr($str_value[$i][$j],1,-1).',';
	                }
	                elseif(in_array($str_value[$i][$j],$pos,TRUE) || is_numeric($str_value[$i][$j]{0}) || $str_value[$i][$j]{0} === NULL)
	                {
	                    $return['background-position'] .= $str_value[$i][$j];
	                    if(!$have['pos']) $return['background-position'] .= ' '; else $return['background-position'].= ',';
	                    $have['pos'] = TRUE;
	                }
	                elseif(!$have['color'])
	                {
	                    $return['background-color'] .= $str_value[$i][$j].',';
	                    $have['color'] = TRUE;
	                }
	            }
	        }
	
	        foreach($background_prop_default as $bg_prop => $default_value)
	        {
	            if($return[$bg_prop] !== NULL)
	            {
	                $return[$bg_prop] = substr($return[$bg_prop],0,-1).$important;
	            }
	            else $return[$bg_prop] = $default_value.$important;
	        }
	        return $return;
	    }
	
	    /**
	     * Merges all background properties
	     * @param array $input_css
	     * @return array
	     * @version 1.0
	     * @see dissolve_short_bg()
	     * @todo full CSS 3 compliance
	     */
	    function merge_bg($input_css)
	    {
	        $background_prop_default =& $GLOBALS['csstidy']['background_prop_default'];
	        // Max number of background images. CSS3 not yet fully implemented
	        $number_of_values = @max(count(csstidy_optimise::explode_ws(',',$input_css['background-image'])),count(csstidy_optimise::explode_ws(',',$input_css['background-color'])),1);
	        // Array with background images to check if BG image exists
	        $bg_img_array = @csstidy_optimise::explode_ws(',',csstidy::gvw_important($input_css['background-image']));
	        $new_bg_value = '';
	        $important = '';
	
	        for($i = 0; $i < $number_of_values; $i++)
	        {
	            foreach($background_prop_default as $bg_property => $default_value)
	            {
	                // Skip if property does not exist
	                if(!isset($input_css[$bg_property]))
	                {
	                    continue;
	                }
	
	                $cur_value = $input_css[$bg_property];
	
	                // Skip some properties if there is no background image
	                if((!isset($bg_img_array[$i]) || $bg_img_array[$i] === 'none')
	                    && ($bg_property === 'background-size' || $bg_property === 'background-position'
	                    || $bg_property === 'background-attachment' || $bg_property === 'background-repeat'))
	                {
	                    continue;
	                }
	
	                // Remove !important
	                if(csstidy::is_important($cur_value))
	                {
	                    $important = ' !important';
	                    $cur_value = csstidy::gvw_important($cur_value);
	                }
	
	                // Do not add default values
	                if($cur_value === $default_value)
	                {
	                    continue;
	                }
	
	                $temp = csstidy_optimise::explode_ws(',',$cur_value);
	
	                if(isset($temp[$i]))
	                {
                    if($bg_property == 'background-size')
                    {
                        $new_bg_value .= '('.$temp[$i].') ';
                    }
                    else
                    {
                        $new_bg_value .= $temp[$i].' ';
                    }
                }
            }

            $new_bg_value = trim($new_bg_value);
            if($i != $number_of_values-1) $new_bg_value .= ',';
        }

        // Delete all background-properties
        foreach($background_prop_default as $bg_property => $default_value)
        {
            unset($input_css[$bg_property]);
        }

        // Add new background property
        if($new_bg_value !== '') $input_css['background'] = $new_bg_value.$important;

        return $input_css;
    }
}

/**
 * CSS Parser class
 *
 * This class represents a CSS parser which reads CSS code and saves it in an array.
 * In opposite to most other CSS parsers, it does not use regular expressions and
 * thus has full CSS2 support and a higher reliability.
 * Additional to that it applies some optimisations and fixes to the CSS code.
 * An online version should be available here: http://cdburnerxp.se/cssparse/css_optimiser.php
 * @package csstidy
 * @author Florian Schmitz (floele at gmail dot com) 2005-2006
 * @version 1.3
 */
 class csstidy {
	
	/**
	 * Saves the parsed CSS
	 * @var array
	 * @access public
	 */
	var $css = array();
	
	/**
	 * Saves the parsed CSS (raw)
	 * @var array
	 * @access private
	 */
	var $tokens = array();
	
	/**
	 * Printer class
	 * @see csstidy_print
	 * @var object
	 * @access public
	 */
	var $print;
	
	/**
	 * Optimiser class
	 * @see csstidy_optimise
	 * @var object
	 * @access private
	 */
	var $optimise;
	
	/**
	 * Saves the CSS charset (@charset)
	 * @var string
	 * @access private
	 */
	var $charset = '';
	
	/**
	 * Saves all @import URLs
	 * @var array
	 * @access private
	 */
	var $import = array();
	
	/**
	 * Saves the namespace
	 * @var string
	 * @access private
	 */
	var $namespace = '';
	
	/**
	 * Contains the version of csstidy
	 * @var string
	 * @access private
	 */
	var $version = '1.3';
	
	/**
	 * Stores the settings
	 * @var array
	 * @access private
	 */
	var $settings = array();
	
	/**
	 * Saves the parser-status.
	 *
	 * Possible values:
	 * - is = in selector
	 * - ip = in property
	 * - iv = in value
	 * - instr = in string (started at " or ' or ( )
	 * - ic = in comment (ignore everything)
	 * - at = in @-block
	 *
	 * @var string
	 * @access private
	 */
	var $status = 'is';
	
	
	/**
	 * Saves the current at rule (@media)
	 * @var string
	 * @access private
	 */
	var $at = '';
	
	/**
	 * Saves the current selector
	 * @var string
	 * @access private
	 */
	var $selector = '';
	
	/**
	 * Saves the current property
	 * @var string
	 * @access private
	 */
	var $property = '';
	
	/**
	 * Saves the position of , in selectors
	 * @var array
	 * @access private
	 */
	var $sel_separate = array();
	
	/**
	 * Saves the current value
	 * @var string
	 * @access private
	 */
	var $value = '';
	
	/**
	 * Saves the current sub-value
	 *
	 * Example for a subvalue:
	 * background:url(foo.png) red no-repeat;
	 * "url(foo.png)", "red", and  "no-repeat" are subvalues,
	 * seperated by whitespace
	 * @var string
	 * @access private
	 */
	var $sub_value = '';
	
	/**
	 * Array which saves all subvalues for a property.
	 * @var array
	 * @see sub_value
	 * @access private
	 */
	var $sub_value_arr = array();
	
	/**
	 * Saves the char which opened the last string
	 * @var string
	 * @access private
	 */
	var $str_char = '';
	var $cur_string = '';
	
	/**
	 * Status from which the parser switched to ic or instr
	 * @var string
	 * @access private
	 */
	var $from = '';
	
	/**
	 * Variable needed to manage string-in-strings, for example url("foo.png")
	 * @var string
	 * @access private
	 */
	var $str_in_str = false;
	
	/**
	 * =true if in invalid at-rule
	 * @var bool
	 * @access private
	 */
	var $invalid_at = false;
	
	/**
	 * =true if something has been added to the current selector
	 * @var bool
	 * @access private
	 */
	var $added = false;
	
	/**
	 * Array which saves the message log
	 * @var array
	 * @access private
	 */
	var $log = array();
	
	/**
	 * Saves the line number
	 * @var integer
	 * @access private
	 */
	var $line = 1;
	
	/**
	 * Loads standard template and sets default settings
	 * @access private
	 * @version 1.3
	 */
	function csstidy()
	{
		$this->settings['remove_bslash'] = true;
		$this->settings['compress_colors'] = true;
		$this->settings['compress_font-weight'] = true;
		$this->settings['lowercase_s'] = false;
		$this->settings['optimise_shorthands'] = 1;
		$this->settings['remove_last_;'] = false;
		$this->settings['case_properties'] = 1;
		$this->settings['sort_properties'] = false;
		$this->settings['sort_selectors'] = false;
		$this->settings['merge_selectors'] = 2;
		$this->settings['discard_invalid_properties'] = false;
		$this->settings['css_level'] = 'CSS2.1';
	    $this->settings['preserve_css'] = false;
	    $this->settings['timestamp'] = false;
	
		$this->load_template('default');
	    $this->print = new csstidy_print($this);
	    $this->optimise = new csstidy_optimise($this);
	}
	
	/**
	 * Get the value of a setting.
	 * @param string $setting
	 * @access public
	 * @return mixed
	 * @version 1.0
	 */
	function get_cfg($setting)
	{
		if(isset($this->settings[$setting]))
		{
			return $this->settings[$setting];
		}
		return false;
	}
	
	/**
	 * Set the value of a setting.
	 * @param string $setting
	 * @param mixed $value
	 * @access public
	 * @return bool
	 * @version 1.0
	 */
	function set_cfg($setting,$value)
	{
		if(isset($this->settings[$setting]) && $value !== '')
		{
			$this->settings[$setting] = $value;
			return true;
		}
		return false;
	}
	
	/**
	 * Adds a token to $this->tokens
	 * @param mixed $type
	 * @param string $data
	 * @param bool $do add a token even if preserve_css is off
	 * @access private
	 * @version 1.0
	 */
	function _add_token($type, $data, $do = false) {
	    if($this->get_cfg('preserve_css') || $do) {
	        $this->tokens[] = array($type, ($type == COMMENT) ? $data : trim($data));
	    }
	}
	
	/**
	 * Add a message to the message log
	 * @param string $message
	 * @param string $type
	 * @param integer $line
	 * @access private
	 * @version 1.0
	 */
	function log($message,$type,$line = -1)
	{
		if($line === -1)
		{
			$line = $this->line;
		}
		$line = intval($line);
		$add = array('m' => $message, 't' => $type);
		if(!isset($this->log[$line]) || !in_array($add,$this->log[$line]))
		{
			$this->log[$line][] = $add;
		}
	}
	
	/**
	 * Parse unicode notations and find a replacement character
	 * @param string $string
	 * @param integer $i
	 * @access private
	 * @return string
	 * @version 1.2
	 */
	function _unicode(&$string, &$i)
	{
		++$i;
		$add = '';
		$tokens =& $GLOBALS['csstidy']['tokens'];
		$replaced = false;
	
		while($i < strlen($string) && (ctype_xdigit($string{$i}) || ctype_space($string{$i})) && strlen($add) < 6)
		{
			$add .= $string{$i};
	
			if(ctype_space($string{$i})) {
				break;
			}
			$i++;
		}
	
		if(hexdec($add) > 47 && hexdec($add) < 58 || hexdec($add) > 64 && hexdec($add) < 91 || hexdec($add) > 96 && hexdec($add) < 123)
		{
			$this->log('Replaced unicode notation: Changed \\'. $add .' to ' . chr(hexdec($add)),'Information');
			$add = chr(hexdec($add));
			$replaced = true;
		}
		else {
			$add = trim('\\'.$add);
		}
	
		if(@ctype_xdigit($string{$i+1}) && ctype_space($string{$i})
	       && !$replaced || !ctype_space($string{$i})) {
			$i--;
		}
	
		if($add != '\\' || !$this->get_cfg('remove_bslash') || strpos($tokens, $string{$i+1}) !== false) {
			return $add;
		}
	
		if($add == '\\') {
			$this->log('Removed unnecessary backslash','Information');
		}
		return '';
	}
	
	/**
	 * Loads a new template
	 * @param string $content either filename (if $from_file == true), content of a template file, "high_compression", "highest_compression", "low_compression", or "default"
	 * @param bool $from_file uses $content as filename if true
	 * @access public
	 * @version 1.1
	 * @see http://csstidy.sourceforge.net/templates.php
	 */
	function load_template($content, $from_file=true)
	{
		$predefined_templates =& $GLOBALS['csstidy']['predefined_templates'];
		if($content == 'high_compression' || $content == 'default' || $content == 'highest_compression' || $content == 'low_compression')
		{
			$this->template = $predefined_templates[$content];
			return;
		}
	
		if($from_file)
		{
			$content = strip_tags(file_get_contents($content),'<span>');
		}
		$content = str_replace("\r\n","\n",$content); // Unify newlines (because the output also only uses \n)
		$template = explode('|',$content);
	
		for ($i = 0; $i < count($template); $i++ )
		{
			$this->template[$i] = $template[$i];
		}
	}
	
	/**
	 * Starts parsing from URL
	 * @param string $url
	 * @access public
	 * @version 1.0
	 */
	function parse_from_url($url)
	{
		return $this->parse(@file_get_contents($url));
	}
	
	/**
	 * Checks if there is a token at the current position
	 * @param string $string
	 * @param integer $i
	 * @access public
	 * @version 1.11
	 */
	function is_token(&$string, $i)
	{
		$tokens =& $GLOBALS['csstidy']['tokens'];
		return (strpos($tokens, $string{$i}) !== false && !csstidy::escaped($string,$i));
	}
	
	
	/**
	 * Parses CSS in $string. The code is saved as array in $this->css
	 * @param string $string the CSS code
	 * @access public
	 * @return bool
	 * @version 1.1
	 */
	function parse($string) {
	    // PHP bug? Settings need to be refreshed in PHP4
	    $this->print = new csstidy_print($this);
	    $this->optimise = new csstidy_optimise($this);
	
	    $all_properties =& $GLOBALS['csstidy']['all_properties'];
	    $at_rules =& $GLOBALS['csstidy']['at_rules'];
	
	    $this->css = array();
	    $this->print->input_css = $string;
	    $string = str_replace("\r\n","\n",$string) . ' ';
	    $cur_comment = '';
	
	    for ($i = 0, $size = strlen($string); $i < $size; $i++ )
	    {
	        if($string{$i} == "\n" || $string{$i} == "\r")
	        {
	            ++$this->line;
	        }
	
	        switch($this->status)
	        {
	            /* Case in at-block */
	            case 'at':
	            if(csstidy::is_token($string,$i))
	            {
	                if($string{$i} == '/' && @$string{$i+1} == '*')
	                {
	                    $this->status = 'ic'; ++$i;
	                    $this->from = 'at';
	                }
	                elseif($string{$i} == '{')
	                {
	                    $this->status = 'is';
	                    $this->_add_token(AT_START, $this->at);
	                }
	                elseif($string{$i} == ',')
	                {
	                    $this->at = trim($this->at).',';
	                }
	                elseif($string{$i} == '\\')
	                {
	                    $this->at .= $this->_unicode($string,$i);
	                }
	            }
	            else
	            {
	                $lastpos = strlen($this->at)-1;
	                if(!( (ctype_space($this->at{$lastpos}) || csstidy::is_token($this->at,$lastpos) && $this->at{$lastpos} == ',') && ctype_space($string{$i})))
	                {
	                    $this->at .= $string{$i};
	                }
	            }
	            break;
	
	            /* Case in-selector */
	            case 'is':
	            if(csstidy::is_token($string,$i))
	            {
	                if($string{$i} == '/' && @$string{$i+1} == '*' && trim($this->selector) == '')
	                {
	                    $this->status = 'ic'; ++$i;
	                    $this->from = 'is';
	                }
	                elseif($string{$i} == '@' && trim($this->selector) == '')
	                {
	                    // Check for at-rule
	                    $this->invalid_at = true;
	                    foreach($at_rules as $name => $type)
	                    {
	                        if(!strcasecmp(substr($string,$i+1,strlen($name)),$name))
	                        {
	                            ($type == 'at') ? $this->at = '@'.$name : $this->selector = '@'.$name;
	                            $this->status = $type;
	                            $i += strlen($name);
	                            $this->invalid_at = false;
	                        }
	                    }
	
	                    if($this->invalid_at)
	                    {
	                        $this->selector = '@';
	                        $invalid_at_name = '';
	                        for($j = $i+1; $j < $size; ++$j)
	                        {
	                            if(!ctype_alpha($string{$j}))
	                            {
	                                break;
	                            }
	                            $invalid_at_name .= $string{$j};
	                        }
	                        $this->log('Invalid @-rule: '.$invalid_at_name.' (removed)','Warning');
	                    }
	                }
	                elseif(($string{$i} == '"' || $string{$i} == "'"))
	                {
	                    $this->cur_string = $string{$i};
	                    $this->status = 'instr';
	                    $this->str_char = $string{$i};
	                    $this->from = 'is';
	                }
	                elseif($this->invalid_at && $string{$i} == ';')
	                {
	                    $this->invalid_at = false;
	                    $this->status = 'is';
	                }
	                elseif($string{$i} == '{')
	                {
	                    $this->status = 'ip';
	                    $this->_add_token(SEL_START, $this->selector);
	                    $this->added = false;
	                }
	                elseif($string{$i} == '}')
	                {
	                    $this->_add_token(AT_END, $this->at);
	                    $this->at = '';
	                    $this->selector = '';
	                    $this->sel_separate = array();
	                }
	                elseif($string{$i} == ',')
	                {
	                    $this->selector = trim($this->selector).',';
	                    $this->sel_separate[] = strlen($this->selector);
	                }
	                elseif($string{$i} == '\\')
	                {
	                    $this->selector .= $this->_unicode($string,$i);
	                }
	                // remove unnecessary universal selector,  FS#147
	                else if(!($string{$i} == '*' && @in_array($string{$i+1}, array('.', '#', '[', ':')))) {
	                    $this->selector .= $string{$i};
	                }
	            }
	            else
	            {
	                $lastpos = strlen($this->selector)-1;
	                if($lastpos == -1 || !( (ctype_space($this->selector{$lastpos}) || csstidy::is_token($this->selector,$lastpos) && $this->selector{$lastpos} == ',') && ctype_space($string{$i})))
	                {
	                    $this->selector .= $string{$i};
	                }
	            }
	            break;
	
	            /* Case in-property */
	            case 'ip':
	            if(csstidy::is_token($string,$i))
	            {
	                if(($string{$i} == ':' || $string{$i} == '=') && $this->property != '')
	                {
	                    $this->status = 'iv';
	                    if(!$this->get_cfg('discard_invalid_properties') || csstidy::property_is_valid($this->property)) {
	                        $this->_add_token(PROPERTY, $this->property);
	                    }
	                }
	                elseif($string{$i} == '/' && @$string{$i+1} == '*' && $this->property == '')
	                {
	                    $this->status = 'ic'; ++$i;
	                    $this->from = 'ip';
	                }
	                elseif($string{$i} == '}')
	                {
	                    $this->explode_selectors();
	                    $this->status = 'is';
	                    $this->invalid_at = false;
	                    $this->_add_token(SEL_END, $this->selector);
	                    $this->selector = '';
	                    $this->property = '';
	                }
	                elseif($string{$i} == ';')
	                {
	                    $this->property = '';
	                }
	                elseif($string{$i} == '\\')
	                {
	                    $this->property .= $this->_unicode($string,$i);
	                }
	            }
	            elseif(!ctype_space($string{$i}))
	            {
	                $this->property .= $string{$i};
	            }
	            break;
	
	            /* Case in-value */
	            case 'iv':
	            $pn = (($string{$i} == "\n" || $string{$i} == "\r") && $this->property_is_next($string,$i+1) || $i == strlen($string)-1);
	            if(csstidy::is_token($string,$i) || $pn)
	            {
	                if($string{$i} == '/' && @$string{$i+1} == '*')
	                {
	                    $this->status = 'ic'; ++$i;
	                    $this->from = 'iv';
	                }
	                elseif(($string{$i} == '"' || $string{$i} == "'" || $string{$i} == '('))
	                {
	                    $this->cur_string = $string{$i};
	                    $this->str_char = ($string{$i} == '(') ? ')' : $string{$i};
	                    $this->status = 'instr';
	                    $this->from = 'iv';
	                }
	                elseif($string{$i} == ',')
	                {
	                    $this->sub_value = trim($this->sub_value).',';
	                }
	                elseif($string{$i} == '\\')
	                {
	                    $this->sub_value .= $this->_unicode($string,$i);
	                }
	                elseif($string{$i} == ';' || $pn)
	                {
	                    if($this->selector{0} == '@' && isset($at_rules[substr($this->selector,1)]) && $at_rules[substr($this->selector,1)] == 'iv')
	                    {
	                        $this->sub_value_arr[] = trim($this->sub_value);
	
	                        $this->status = 'is';
	
	                        switch($this->selector)
	                        {
	                            case '@charset': $this->charset = $this->sub_value_arr[0]; break;
	                            case '@namespace': $this->namespace = implode(' ',$this->sub_value_arr); break;
	                            case '@import': $this->import[] = implode(' ',$this->sub_value_arr); break;
	                        }
	
	                        $this->sub_value_arr = array();
	                        $this->sub_value = '';
	                        $this->selector = '';
	                        $this->sel_separate = array();
	                    }
	                    else
	                    {
	                        $this->status = 'ip';
	                    }
	                }
	                elseif($string{$i} != '}')
	                {
	                    $this->sub_value .= $string{$i};
	                }
	                if(($string{$i} == '}' || $string{$i} == ';' || $pn) && !empty($this->selector))
	                {
	                    if($this->at == '')
	                    {
	                        $this->at = DEFAULT_AT;
	                    }
	
	                    // case settings
	                    if($this->get_cfg('lowercase_s'))
	                    {
	                        $this->selector = strtolower($this->selector);
	                    }
	                    $this->property = strtolower($this->property);
	
	                    $this->optimise->subvalue();
	                    if($this->sub_value != '') {
	                        $this->sub_value_arr[] = $this->sub_value;
	                        $this->sub_value = '';
	                    }
	
	                    $this->value = implode(' ',$this->sub_value_arr);
	
	                    $this->selector = trim($this->selector);
	
	                    $this->optimise->value();
	
	                    $valid = csstidy::property_is_valid($this->property);
	                    if((!$this->invalid_at || $this->get_cfg('preserve_css')) && (!$this->get_cfg('discard_invalid_properties') || $valid))
	                    {
	                        $this->css_add_property($this->at,$this->selector,$this->property,$this->value);
	                        $this->_add_token(VALUE, $this->value);
	                        $this->optimise->shorthands();
	                    }
	                    if(!$valid)
	                    {
	                        if($this->get_cfg('discard_invalid_properties'))
	                        {
	                            $this->log('Removed invalid property: '.$this->property,'Warning');
	                        }
	                        else
	                        {
	                            $this->log('Invalid property in '.strtoupper($this->get_cfg('css_level')).': '.$this->property,'Warning');
	                        }
	                    }
	
	                    $this->property = '';
	                    $this->sub_value_arr = array();
	                    $this->value = '';
	                }
	                if($string{$i} == '}')
	                {
	                    $this->explode_selectors();
	                    $this->_add_token(SEL_END, $this->selector);
	                    $this->status = 'is';
	                    $this->invalid_at = false;
	                    $this->selector = '';
	                }
	            }
	            elseif(!$pn)
	            {
	                $this->sub_value .= $string{$i};
	
	                if(ctype_space($string{$i}))
	                {
	                    $this->optimise->subvalue();
	                    if($this->sub_value != '') {
	                        $this->sub_value_arr[] = $this->sub_value;
	                        $this->sub_value = '';
	                    }
	                }
	            }
	            break;
	
	            /* Case in string */
	            case 'instr':
	            if($this->str_char == ')' && ($string{$i} == '"' || $string{$i} == '\'') && !$this->str_in_str && !csstidy::escaped($string,$i))
	            {
	                $this->str_in_str = true;
	            }
	            elseif($this->str_char == ')' && ($string{$i} == '"' || $string{$i} == '\'') && $this->str_in_str && !csstidy::escaped($string,$i))
	            {
	                $this->str_in_str = false;
	            }
	            $temp_add = $string{$i};           // ...and no not-escaped backslash at the previous position
	            if( ($string{$i} == "\n" || $string{$i} == "\r") && !($string{$i-1} == '\\' && !csstidy::escaped($string,$i-1)) )
	            {
	                $temp_add = "\\A ";
	                $this->log('Fixed incorrect newline in string','Warning');
	            }
	            if (!($this->str_char == ')' && in_array($string{$i}, $GLOBALS['csstidy']['whitespace']) && !$this->str_in_str)) {
	                $this->cur_string .= $temp_add;
	            }
	            if($string{$i} == $this->str_char && !csstidy::escaped($string,$i) && !$this->str_in_str)
	            {
	                $this->status = $this->from;
	                if (!preg_match('|[' . implode('', $GLOBALS['csstidy']['whitespace']) . ']|uis', $this->cur_string) && $this->property != 'content') {
	                    if ($this->str_char == '"' || $this->str_char == '\'') {
							$this->cur_string = substr($this->cur_string, 1, -1);
						} else if (strlen($this->cur_string) > 3 && ($this->cur_string[1] == '"' || $this->cur_string[1] == '\'')) /* () */ {
							$this->cur_string = $this->cur_string[0] . substr($this->cur_string, 2, -2) . substr($this->cur_string, -1);
						}
	                }
	                if($this->from == 'iv')
	                {
	                    $this->sub_value .= $this->cur_string;
	                }
	                elseif($this->from == 'is')
	                {
	                    $this->selector .= $this->cur_string;
	                }
	            }
	            break;
	
	            /* Case in-comment */
	            case 'ic':
	            if($string{$i} == '*' && $string{$i+1} == '/')
	            {
	                $this->status = $this->from;
	                $i++;
	                $this->_add_token(COMMENT, $cur_comment);
	                $cur_comment = '';
	            }
	            else
	            {
	                $cur_comment .= $string{$i};
	            }
	            break;
	        }
	    }
	
	    $this->optimise->postparse();
	
	    $this->print->_reset();
	
	    return !(empty($this->css) && empty($this->import) && empty($this->charset) && empty($this->tokens) && empty($this->namespace));
	}
	
	/**
	 * Explodes selectors
	 * @access private
	 * @version 1.0
	 */
	function explode_selectors()
	{
	    // Explode multiple selectors
	    if($this->get_cfg('merge_selectors') == 1)
	    {
	        $new_sels = array();
	        $lastpos = 0;
	        $this->sel_separate[] = strlen($this->selector);
	        foreach($this->sel_separate as $num => $pos)
	        {
	            if($num == count($this->sel_separate)-1) {
	                $pos += 1;
	            }
	
	            $new_sels[] = substr($this->selector,$lastpos,$pos-$lastpos-1);
	            $lastpos = $pos;
	        }
	
	        if(count($new_sels) > 1)
	        {
	            foreach($new_sels as $selector)
	            {
	                $this->merge_css_blocks($this->at,$selector,$this->css[$this->at][$this->selector]);
	            }
	            unset($this->css[$this->at][$this->selector]);
	        }
	    }
	    $this->sel_separate = array();
	}
	
	/**
	 * Checks if a character is escaped (and returns true if it is)
	 * @param string $string
	 * @param integer $pos
	 * @access public
	 * @return bool
	 * @version 1.02
	 */
	function escaped(&$string,$pos)
	{
		return !(@($string{$pos-1} != '\\') || csstidy::escaped($string,$pos-1));
	}
	
	/**
	 * Adds a property with value to the existing CSS code
	 * @param string $media
	 * @param string $selector
	 * @param string $property
	 * @param string $new_val
	 * @access private
	 * @version 1.2
	 */
	function css_add_property($media,$selector,$property,$new_val)
	{
	    if($this->get_cfg('preserve_css') || trim($new_val) == '') {
	        return;
	    }
	
	    $this->added = true;
	    if(isset($this->css[$media][$selector][$property]))
	    {
	        if((csstidy::is_important($this->css[$media][$selector][$property]) && csstidy::is_important($new_val)) || !csstidy::is_important($this->css[$media][$selector][$property]))
	        {
	            unset($this->css[$media][$selector][$property]);
	            $this->css[$media][$selector][$property] = trim($new_val);
	        }
	    }
	    else
	    {
	        $this->css[$media][$selector][$property] = trim($new_val);
	    }
	}
	
	/**
	 * Adds CSS to an existing media/selector
	 * @param string $media
	 * @param string $selector
	 * @param array $css_add
	 * @access private
	 * @version 1.1
	 */
	function merge_css_blocks($media,$selector,$css_add)
	{
		foreach($css_add as $property => $value)
		{
			$this->css_add_property($media,$selector,$property,$value,false);
		}
	}
	
	/**
	 * Checks if $value is !important.
	 * @param string $value
	 * @return bool
	 * @access public
	 * @version 1.0
	 */
	function is_important(&$value)
	{
		return (!strcasecmp(substr(str_replace($GLOBALS['csstidy']['whitespace'],'',$value),-10,10),'!important'));
	}
	
	/**
	 * Returns a value without !important
	 * @param string $value
	 * @return string
	 * @access public
	 * @version 1.0
	 */
	function gvw_important($value)
	{
		if(csstidy::is_important($value))
		{
			$value = trim($value);
			$value = substr($value,0,-9);
			$value = trim($value);
			$value = substr($value,0,-1);
			$value = trim($value);
			return $value;
		}
		return $value;
	}
	
	/**
	 * Checks if the next word in a string from pos is a CSS property
	 * @param string $istring
	 * @param integer $pos
	 * @return bool
	 * @access private
	 * @version 1.2
	 */
	function property_is_next($istring, $pos)
	{
		$all_properties =& $GLOBALS['csstidy']['all_properties'];
		$istring = substr($istring,$pos,strlen($istring)-$pos);
		$pos = strpos($istring,':');
		if($pos === false)
		{
			return false;
		}
		$istring = strtolower(trim(substr($istring,0,$pos)));
		if(isset($all_properties[$istring]))
		{
			$this->log('Added semicolon to the end of declaration','Warning');
			return true;
		}
		return false;
	}
	
	/**
	 * Checks if a property is valid
	 * @param string $property
	 * @return bool;
	 * @access public
	 * @version 1.0
	 */
	function property_is_valid($property) {
	    $all_properties =& $GLOBALS['csstidy']['all_properties'];
	    return (isset($all_properties[$property]) && strpos($all_properties[$property],strtoupper($this->get_cfg('css_level'))) !== false );
	}
}
?>